Change secret for wheel publishing (#1955)

The workflow GitHub App default credential in OpenXLA cannot create
GitHub releases.

Follow the convention identified by IREE in OpenXLA which uses a
[repository
secret](https://github.com/openxla/iree/blob/79b6129e2333ae26e7e13b68c27566102dcece6e/.github/workflows/validate_and_publish_release.yml#L112C37-L112C55)
linked to a developers credential with repo permissions.

The secret created here was created by gleasonk@ and the secret at the
moment of this commit belongs to fzakaria@.
It is valid for 1-year.

.github/workflows/publishWheelRelease.yml

@@ -122,7 +122,7 @@ jobs:
         uses: ncipollo/[email protected]
         with:
           artifacts: "${{ github.sha }}/*.whl"
-          token: "${{ secrets.GITHUB_TOKEN }}"
+          token: "${{ secrets.PUBLISH_ACCESS_TOKEN }}"
           # git describe in setup.py explicitly filters out this tag
           tag: "dev-wheels"
           name: "dev-wheels"